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cmhrbeu

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# 3d UO2 crash simulation

units metal
dimension        3
boundary        p p p
atom_style        charge
read_data uo2.lammps

# hybrid/overlay born/coul/long potentials

group u type 1
group o type 2
set group o charge -1.1104
set group u charge 2.2208
pair_style hybrid/overlay born/coul/long 10.4 morse 10.4
pair_coeff 1 1 born/coul/long 187.03 0.3422 0 0 0
pair_coeff 1 2 born/coul/long 432.18 0.3422 0 0 0
pair_coeff 2 2 born/coul/long 883.12 0.3422 0 3.996 0

pair_coeff 1 2 morse 0.5055 1.864 2.378

kspace_style pppm 1e-4

# fixes

min_style sd
minimize 1.0e-6 1.0e-6 10000 10000
velocity all create 500.0  50000 rot yes dist gaussian
fix         1 all nvt temp 300.0 300.0 3.0 drag 1

# run

timestep        0.001
thermo                100
thermo_style custom step temp pe ke

#neigh_modify         every 1 delay 0 check yes page 10000

compute    1 all pe/atom
compute    2 all ke/atom
dump                1 all custom 1000 cm.crash id type x y z c_1 c_2

run                50000

unfix 1
write_restart cm.rs

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